[U-Boot] practicality of demonstrating u-boot in a QEMU session?

[U-Boot] practicality of demonstrating u-boot in a QEMU session?

[Robert P. J. Day]

  i'm teaching some embedded linux next week and, while i will have
physical boards for the students to play with, i'd also like to
demonstrate basic u-boot within a QEMU session as far as that's
practical.

  the boards themselves will be powerpc-based lite5200 (icecube)
systems all currently populated with u-boot (some old versions, some
newer) so certainly they'll have u-boot on the systems when the time
comes to start running them.

  regarding the QEMU session, i get the impression that QEMU and
powerpc still have problems but, if it's a QEMU session, i'm free to
choose the architecture so picking ARM is probably a good bet.

  i found a couple useful articles online:

http://balau82.wordpress.com/2010/03/10/u-boot-for-arm-on-qemu/
http://balau82.wordpress.com/2010/04/12/booting-linux-with-u-boot-on-qemu-arm/

so i can use them as a starting point, but both of them are well over
a year old so i'm wondering if there's a more recent, canonical online
explanation of emulating u-boot in a QEMU session just for demo
purposes, and at what point the emulation breaks down given the lack
of actual underlying hardware.

  thanks for any pointers.  i've never tried u-boot in a QEMU session
before; hence the fairly intro-level request for help.

rday

-- 

========================================================================
Robert P. J. Day                                 Ottawa, Ontario, CANADA
                        http://crashcourse.ca

Twitter:                                       http://twitter.com/rpjday
LinkedIn:                               http://ca.linkedin.com/in/rpjday
========================================================================

[U-Boot] practicality of demonstrating u-boot in a QEMU session?

[Wolfgang Denk]

Dear "Robert P. J. Day",

In message <alpine.DEB.2.02.1111280701300.6538@oneiric> you wrote:
> 
>   i'm teaching some embedded linux next week and, while i will have
> physical boards for the students to play with, i'd also like to
> demonstrate basic u-boot within a QEMU session as far as that's
> practical.

Or use sandbox?

Best regards,

Wolfgang Denk

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[U-Boot] practicality of demonstrating u-boot in a QEMU session?

[Robert P. J. Day]

On Mon, 28 Nov 2011, Wolfgang Denk wrote:

> Dear "Robert P. J. Day",
>
> In message <alpine.DEB.2.02.1111280701300.6538@oneiric> you wrote:
> >
> >   i'm teaching some embedded linux next week and, while i will have
> > physical boards for the students to play with, i'd also like to
> > demonstrate basic u-boot within a QEMU session as far as that's
> > practical.
>
> Or use sandbox?

  ah, i was unaware of that, thanks.

rday

-- 

========================================================================
Robert P. J. Day                                 Ottawa, Ontario, CANADA
                        http://crashcourse.ca

Twitter:                                       http://twitter.com/rpjday
LinkedIn:                               http://ca.linkedin.com/in/rpjday
========================================================================

[U-Boot] practicality of demonstrating u-boot in a QEMU session?

[Mike Frysinger]

On Monday 28 November 2011 07:07:47 Robert P. J. Day wrote:
>   i'm teaching some embedded linux next week and, while i will have
> physical boards for the students to play with, i'd also like to
> demonstrate basic u-boot within a QEMU session as far as that's
> practical.

if `make sandbox` is good enough for your needs, stick with that

if you just want to demo it on your comp and want "more" than sandbox 
currently offers, the Blackfin port should work great under its simulator

otherwise, i can't speak to specifics, but ideally this should work :)
-mike
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